/* * Copyright (c) 2003, Adam Dunkels. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright *    notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright *    notice, this list of conditions and the following disclaimer in the *    documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote *    products derived from this software without specific prior *    written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * This file is part of the uIP TCP/IP stack. * * $Id: shell.c,v 1.1 2006/06/07 09:43:54 adam Exp $ * */#include "shell.h"#include <string.h>struct ptentry {  char *commandstr;  void (* pfunc)(char *str);};#define SHELL_PROMPT "uIP 1.0> "/*---------------------------------------------------------------------------*/static voidparse(register char *str, struct ptentry *t){  struct ptentry *p;  for(p = t; p->commandstr != NULL; ++p) {    if(strncmp(p->commandstr, str, strlen(p->commandstr)) == 0) {      break;    }  }  p->pfunc(str);}/*---------------------------------------------------------------------------*/static voidinttostr(register char *str, unsigned int i){  str[0] = '0' + i / 100;  if(str[0] == '0') {    str[0] = ' ';  }  str[1] = '0' + (i / 10) % 10;  if(str[0] == ' ' && str[1] == '0') {    str[1] = ' ';  }  str[2] = '0' + i % 10;  str[3] = ' ';  str[4] = 0;}/*---------------------------------------------------------------------------*/static voidhelp(char *str){  shell_output("Available commands:", "");  shell_output("stats   - show network statistics", "");  shell_output("conn    - show TCP connections", "");  shell_output("help, ? - show help", "");  shell_output("exit    - exit shell", "");}/*---------------------------------------------------------------------------*/static voidunknown(char *str){  if(strlen(str) > 0) {    shell_output("Unknown command: ", str);  }}/*---------------------------------------------------------------------------*/static struct ptentry parsetab[] =  {{"stats", help},   {"conn", help},   {"help", help},   {"exit", shell_quit},   {"?", help},   /* Default action */   {NULL, unknown}};/*---------------------------------------------------------------------------*/voidshell_init(void){}/*---------------------------------------------------------------------------*/voidshell_start(void){  shell_output("uIP command shell", "");  shell_output("Type '?' and return for help", "");  shell_prompt(SHELL_PROMPT);}/*---------------------------------------------------------------------------*/voidshell_input(char *cmd){  parse(cmd, parsetab);  shell_prompt(SHELL_PROMPT);}/*---------------------------------------------------------------------------*/